The former 49ers quarterback previously elected to attend Texans owner Bob McNair's deposition in Houston.

Newsome's and Harbaugh's respective depositions come one day after the Ravens announced they agreed to a one-year deal with former Washington quarterback Robert Griffin III.

The Ravens previously expressed interest in signing Kaepernick in the 2017 offseason but a deal never materialized. Both Kaepernick and Griffin sat out the 2017 season.

Ravens owner Ozzie Newsome and coach John Harbaugh will reportedly be questioned on Thursday as part of Colin Kaepernikc's collusion grievance against the NFL. (Michael Zagaris; Michael Reaves/Getty Images)

In five games with the Browns in 2016, Griffin threw for 886 yards, two touchdowns and three interceptions. In 12 games with the 49ers, Kaepernick threw for 2,241 yards, 16 touchdowns and four interceptions. He finished with a 90.7 QB rating compared to Griffin's 72.5.

While it's likely Newsome's and Harbaugh's respective despositions were scheduled in advance, it may not be a coincidence the team chose to announce their deal with Griffin the day prior.

Kaepernick's lawyers will likely question Newsome and Harbaugh as to why the team elected not to sign Kaepernick in their efforts to support his claim NFL teams have colluded to keep him out of the league due to his social justice activism and protests during the national anthem.